Wire inspection of Nickel-Iron alloy must precede reed blade pressing to ensure quality is good. The alloy wire is vital as it’s the primary material in the construction and function of a reed switch.
Assessment of the wire’s surface greatly influences the resulting blade post-pressing. This, in turn, affects the adherence of the sputter coating on the contact region. Additionally, wires with pit marks form blades that are not smooth on the contact area and this leads to early failure.
To uphold top-notch Reed Switch production standards, the Nickel-Iron alloy wire and glass tube must share similar coefficients of thermal expansion. This matching is crucial for creating well-matched hermetic seals during the melt cycle. This ensures that thermal cycling reed switches do not end with any cracks or leakages in the seal consequently having better over moulding capabilities.
Wire inspection examines straightness, surface imperfections, diameter uniformity, as well as hardness, smoothness, and tensile strength. Any deviations in these characteristics can impact the overall performance of the reed switch. Ensuring the quality of the Nickel-Iron wire is fundamental to guaranteeing the long term reliability and efficiency of the final product. The inspection process helps identify any potential issues early on and allows for timely corrections or replacements. We use spin straighteners during pressing to unkink any wires being few for pressing.
The Nickel-Iron wires hardness plays a major role in the differential and release AT of Reed Switches and consequently affects the performance of based Normally closed and latching Reed Switches too. We maintain strict standards in hardness monitoring, before pressing, after pressing and after annealing.
A meticulous review of the wire’s physical attributes is vital to maintaining the integrity of the reed switch throughout its lifecycle. Continuous monitoring and assessment of the Nickel-Iron wire contribute significantly to the overall success and performance of the reed switch.
